Valve grinder



Sept. 3, 1929. J. R. KIEFER 1,727,292

VALVE GRINDERl Filed April` 9, 1928 lNvENToRv J. Il?. KIEFER BY MM fro ATTORNEY Patented Sept. 3, 1929.

UNITED STATES PATENT OFFI`CE.

JOSEPH R. KIEFER, OF JEFFERSON, OHIO.

VALVE GRINDER.

Application mea Aprii e,

handgrip adapted to be retained in a stationary position while rotatably supporting a hollow shaft, said shaft housing a spring which is placed'under tension by manual ro f 15 tation of the shaft in one direction, the shaft being rotated inthe opposite direction by the spring when released, the spring being employed for connecting the hand grip and the valve wrench to the barrel.

This invention will be best understood from a consideration of the following detailed description; nevertheless it is to be understood that the invention is not conined to the disclosure, being susceptible of such 25v changes and modifications which shall define no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings:

Figure lis a view in perspective of a valve grinder constructed according to the principles of my invention,

Figure 2 is a vertical section of the valve grinder,

Figure 3 is a horizontal section taken along the line 3-3 of Figure 2,

Figure 4 is a perspective view shown in detached relation or" an adjusting plate and a valve wrench,

Figure 5 is a fragmentary vertical section of the lower end of the valve grinder showing the wrench and plate removed,

Figure 6 is aview in perspective supporting bracket.

Referring more particularly tothe drawings 10 designates a hollow shaft in 'which vis mounted a coil spring 11. The shaft at its lower end 1s provided with a pair ot diaof a wire metrically disposed slots 12 and a pair of diametrically disposed notches 13, the notches being in a plane which is at kright angles to,y n n j maintain the arm 34a incengagement with the upper en-ds of the slots 12 while the hook 34a throughthe slots 12.

or spool 14 has a boss 15 bolt 16 for securing the the plane passing A flanged pulley carrying a threaded pulley to the upper end of the outer end of the pulley is provided wlth a shaft. The

192e.4 serial No. 268,522.

boss 17 havingan annular track 18.'y

yWrapped around the same yso that the free end 21 projects through an opening 22 in the side wall of a cup-shapedy hand grip 23.` A finger ring 2tis secured tothe free end 21 of thek cord 19.` `The inverted cup-shaped hand grip 23 has an internal boss 25y providedwith an annular groove 26 which cooperates with the groove 18 to receive ball, bearings 27.

The outery facek of the .cup-shapedfrnember t A cord f '19 1s secured at 2O to the 'pulley and is 23 is provided with a groove 28 to receive the bent ends 29 of a cotterpin 30. f j c The upper end of the `spring 11 has its free end as shown at 31-ormed into an eye to receive the cotter pin 30. The other end ci the spring is formed into an eye`32 to receive astraight arm 33 of a bracket 34. This bracket is 'also provided with a curved arm 35 extending from the straight arm and a hook 34.u projects from the arm 35 in a plane which is at rightr angles to the plane passing through 4the arm 33. The army 33 has a bent portion 33a which receivesthe eye 32. y t n A circular plate and disc 36 has its intermediate portion 37 bent into a Ufshaped member or projection extending fromone -`iace of the disc. 'The side ywalls of the U`sliaped member are adapted to be carried within the dia-y metrically disposed slots 12 at the lower end of the hollowy shaft 10. The U-shaped member acts as a key for ylocking the disc to the shaft whereby the disc will be rotated simultaneously with said shaft. The sidewalls of the U-shaped member y are provided with aligned periorations 38 4to yreceive the hook. 311, A valve wrench 39 has depending prongs i 10` which are adapted to y engage the usual notches 41 in the valve head ,42. The wrench is provided with aperioration 13 adapted to be aligned with the passages 38 .so that when,

the hook 34 1s placed into position it will be f passed through the perforations 38 and 13 `for retaining the wrench 39 in position within the U-shaped member 37.

' The operation of my device is as ollows-l, y

The parts of the device'are` assembled as shown in Figure2. The hook 34 is inserted through the perforations 38 and 43 and the arm 33 is secured by the eye 32 of the spring 11, ywhereby the tension of the spring will holds the valve rwrench 39y and the plate 36 against displacement from theyy U-shaped member 37. .It will be noted that the spring adjust itself and reverse the rotation of the l1 is of less length than the shaft 10 so that when the eye 32 has received the straight'portion 33 of the bracket 34,'said spring will be under tension for maintainingk hookr 34? against displacement and the valve wrench and plate 36 in position. The springmaintains the hand grip 23 in proper position on the boss 17 of the spool or pulley 14.`

The prongs 40 of the wrench 39 are inserted within the notches 41 of the valve head 42 and the finger ring 24-is then grasped and the cord 19 is withdrawn rapidly from the housing 23I thereby causing rotation of the pulley -14 and the shaft 10. f When the finger lring has been released the spring llwhich had been uncoiled previously and placedv under transverse tension will tend to normally shaft 10. These operations of the withdrawpeated as often as is necessary.

, An important feature of the device consists in the fact that while disc 36 is in engagement jwith the outer face of the valve head 42, and

the prongs 40 ofthe wrench are in engagement'with the sockets 41 the shaft 10 maybe rocked at an angle to the vertical and upon '4 opposite sides of the vertical while rotating l wrench 39`have been removed.

said shaft. This is due to the fact that the 1 spring 11 'holds the arm rigidly in place while f the plate 36 and wrench 39 are somewhat loosely supported on the hook 34"?. The slots 12 are of sufficient width tok permit suchV rocktained in position when-the plate 36 and I claim: '1. A valve grinder comprising a hollow shaft, a pulley securedv to the upper end of the shaft, a hand grip mounted on the pulley,

an vadjustingfrplateat the lower end of the shaft, a. valve wrench mounted in the plate,v

a coil spring housed within the shaft and having one end connected to the hand grip, ,l the other end of said spring being removably connected to the wrench and plate, and means for connecting the plate to the shaft whereby rotation of the shaftiwill cause rotation of the f i plate and wrench,meansfor rotating the pul ley in one direction, said-spring tending to rotate the pulley in the ropposite direction,

said plate being movablerelative to the shaft for maintaining the wrench in an operative positionjon the work when the shaft is oscillated. I

shaft, a pulley secured to the upper end of the shaft, aV hand grip mounted on'thepulley, an adjusting'plateon the lower end of 2. A valvey grinderV comprising a hollow grip, the other end of said spring being re- 6'5 movably connected tothe wrench and plate, and said plate having spaced flanges to receive the wrench, the lower end of the shaft having notches in which the flanges are fitted,

meansfor rotating the pullev in one direction, 7o

having' a socket and engaging the other end 80 of the shaft, avalve wrench mounted iin the plate, the saaft and plate being provided "with cooperating means for removably con-" ing and releasing of the cord- 19 may be ree necting the plate kto the shaft, means for causing rotation of the shaft in one direction, a

lspring for causing reverse rotation of the shaft and connecting the hand grip with the connecting means between the plate and said? shaft, said plate being movable relative to the shaft for maintaining the wrench in `an tation when the shaft is rotated, a plate having a portion bent to forma socket land engaging theother end of the shaft, the shaft being provided with slots, the'bent portion of the. plate received within the slots and forming a key forlocking fthe plate to the shaft, means for causing rotation of the shaft and plate in one direction, a 'spring for causing reverse'rotation ofthe shaft and plate,

f a 'bracket supported on the shaft by the spring and having a hook forcarrying the plate, and lo a wrench carried by the plate, said plate' being movable relative to the longitudinal yaxis of Athesha-ftwhereby theplate will retain the wrench in a predetermined operative position on the-workwhen the shaft is oscillated.

A1 valve grinder comprising a hollow shaft, a hand grip mounted on one end of the shaft, and adapted to be retained yagainst rotation when the shaft is rotated, a plate having aperforated UK-shaped projection providing a vwrench socket, a perforated wrench received by the socket, the shaft having slots toreceive the Ushaped projection, the projection formingv a key fork locking the plate to theshaft, means for causing rotation 'of 120 the shaft in one direction, a spring for causing reverse rotation of the shaft, a bracket vsupported on thefshaft by the `springand having a hook tore'ceive the 'perforations in the wrench and U-shaped projection of the plate.'y y* 9 JOSEPHA nnmrnn. 

